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Professionally installed, wireless and hardwired alarm systems are usually wall-mounted, which means the sensor, power, and telephone wires can be concealed inside the wall behind the alarm box or inside a metal conduit. Getting to the circuit boards inside the box is made much harder because most systems require the use of a key to open the box.
These systems are capable of pin pointing where a criminal has entered and interior motion detectors equipped with radio transmitters able central station operators to follow criminals through a home, giving the police the assurance that someone is still inside.
Pin pointing the origin of an alarm is also essential when there are false alarms (nothing made by man is perfect, so ALL alarm systems will eventually generate a false alarm sometime). A professional wireless system enables both the homeowner and professional alarm installer to quickly determine the source of a troublesome alarm. This is also important because communities are instituting fines against homeowners when their alarm system repeatedly cause false alarms.
Although wireless is gaining in popularity among professional alarm installers, the most common professional alarm system on the market today is the "hardwired" system.
These systems use wire to connect remote door and window switches, motion detectors, smoke detectors (when used), and other sensors. There are less sophisticated electronic circuitries to malfunction. Larger systems can quickly identify false-alarm sources so the alarm installer can quickly solve an unnecessary alarm and response.
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